Foreword: Homage to Homans / Charles Tilly -- Introduction: The sentiments and activities of George C. Homans / A. Javier Treviño -- The rise of Homans at Harvard : Pareto and the English villagers / Lawrence T. Nichols -- A medievalist for the twentieth century : George C. Homans and social history / Candice T. Quinn -- Efficient causes, final causes, and human nature : George C. Homans and social anthropology / Aram A. Yengoyan -- Elements and identity : Homans as an industrial sociologist / Stephen J. Appold -- Homans's vision of social exchange / Linda D. Molm -- Homans and Emerson on power : out of the Skinner box? / Karen S. Cook and Alexandra Gerbasi -- Exchange, affect, and group relations / Edward J. Lawler -- Homans and the study of justice / Guillermina Jasso -- The return of the ghost of utilitarianism : Talcott Parsons and the theory of George C. Homans in the 1960s / Uta Gerhardt -- Theorizing in sociology : the advocacy of George C. Homans / Jonathan H. Turner -- Bringing obligations back into human rights : political thought in George Casper Homans / Irving Louis Horowitz -- George C. Homans's life in poetry / Sue Standing